I think I have an article or pictures of Motion working on a '65 Impala.... I recall them putting a ram-air type setup on it removing 2 of the headlights for air ducts. I can't remember if Joel was under the hood or not. Been awhile since I seen the pics. I'll post them later on if I have them.
That atricle called it a "Our Universal Ram Air System"
Very cool find. Problably worth a pretty penny to a guy who knows what he is looking at.